Gino Gradkowski, center

Lloyd Fox / Baltimore Sun

GS: 0 | GP: 16 | Snaps: 193 Season in review: Gradkowski, a 2012 fourth-round draft pick, played sparingly during his rookie season, but he was active for every game, including the playoffs. With veteran center Matt Birk once again being a mainstay in the starting lineup, Gradkowski played mostly on special teams, but he did get mop-up duty in blowout wins over the Cincinnati Bengals, Oakland Raiders and New York Giants. Gradkowski also got significant snaps when the Ravens rested many starters in the season finale against the Bengals. Signature moment: Because his snaps in tight games only came when he did the dirty work on special teams, none quickly comes to mind, but he was solid at center when playing 73 snaps in the season finale. Stat that stands out: zero -- starts missed the past four years by Birk, whom Gradkowski hopes to replace. Pro Football Focus grade: +1.3 overall | +1.0 as a pass blocker | +1.1 as a run blocker | -0.8 penalty. Outlook for 2013 and beyond: Though he didn't get to play much, it was a useful season for Gradkowski, a former small-school college player who got to pick Birk's big brain for a year while also bulking up in the weight room. Right now, he is the frontrunner to replace Birk, though the Ravens could bring in a veteran at some point to compete with him. It will be interesting to learn if Gradkowski is ready to start.

GS: 0 | GP: 16 | Snaps: 193 Season in review: Gradkowski, a 2012 fourth-round draft pick, played sparingly during his rookie season, but he was active for every game, including the playoffs. With veteran center Matt Birk once again being a mainstay in the starting lineup, Gradkowski played mostly on special teams, but he did get mop-up duty in blowout wins over the Cincinnati Bengals, Oakland Raiders and New York Giants. Gradkowski also got significant snaps when the Ravens rested many starters in the season finale against the Bengals. Signature moment: Because his snaps in tight games only came when he did the dirty work on special teams, none quickly comes to mind, but he was solid at center when playing 73 snaps in the season finale. Stat that stands out: zero -- starts missed the past four years by Birk, whom Gradkowski hopes to replace. Pro Football Focus grade: +1.3 overall | +1.0 as a pass blocker | +1.1 as a run blocker | -0.8 penalty. Outlook for 2013 and beyond: Though he didn't get to play much, it was a useful season for Gradkowski, a former small-school college player who got to pick Birk's big brain for a year while also bulking up in the weight room. Right now, he is the frontrunner to replace Birk, though the Ravens could bring in a veteran at some point to compete with him. It will be interesting to learn if Gradkowski is ready to start. (Lloyd Fox / Baltimore Sun)

GS: 0 | GP: 16 | Snaps: 193 Season in review: Gradkowski, a 2012 fourth-round draft pick, played sparingly during his rookie season, but he was active for every game, including the playoffs. With veteran center Matt Birk once again being a mainstay in the starting lineup, Gradkowski played mostly on special teams, but he did get mop-up duty in blowout wins over the Cincinnati Bengals, Oakland Raiders and New York Giants. Gradkowski also got significant snaps when the Ravens rested many starters in the season finale against the Bengals. Signature moment: Because his snaps in tight games only came when he did the dirty work on special teams, none quickly comes to mind, but he was solid at center when playing 73 snaps in the season finale. Stat that stands out: zero -- starts missed the past four years by Birk, whom Gradkowski hopes to replace. Pro Football Focus grade: +1.3 overall | +1.0 as a pass blocker | +1.1 as a run blocker | -0.8 penalty. Outlook for 2013 and beyond: Though he didn't get to play much, it was a useful season for Gradkowski, a former small-school college player who got to pick Birk's big brain for a year while also bulking up in the weight room. Right now, he is the frontrunner to replace Birk, though the Ravens could bring in a veteran at some point to compete with him. It will be interesting to learn if Gradkowski is ready to start.